morningman commented on code in PR #14793:
URL: https://github.com/apache/doris/pull/14793#discussion_r1039076149
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fe/fe-core/src/main/java/org/apache/doris/datasource/CatalogMgr.java:
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@@ -74,6 +74,8 @@ public class CatalogMgr implements Writable,
GsonPostProcessable {
private final Map<Long, CatalogIf> idToCatalog = Maps.newConcurrentMap();
// this map will be regenerated from idToCatalog, so not need to persist.
private final Map<String, CatalogIf> nameToCatalog =
Maps.newConcurrentMap();
+ // record last used database of every catalog
+ private final Map<String, String> lastDBOfCatalog =
Maps.newConcurrentMap();
Review Comment:
You need to clear this map when catalog is droped.
And please add some regression test for this case.
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